really incredible technology. the victim of an alleged carjacking by the way is now talking and what he is saying might give us a glimpse of the motive here. now he was driving a mercedes suv, the owner of that suv. says he was forced to drive to watertown at gunpoint. claims the brothers told him quote, they were the boston marathon bombers and would not kill him because he was not american. well the victim escaped apparently. earlier we are told he was let go. but apparently he escaped at a nearby gas station and called 911. that is where police got hot on their trail at that point, martha. martha: investigators are looking into possible radicalization of these suspects trying to figure out how they got to this point. they're turning their attention overseas in this hunt. here is congressman michael mccaul, chairman of the house homeland security committee on this. listen. >> you can't understand this case until you understand where they came from is chechnya. the chechen rebels are some of the fiercest jihadist